Direct product selection: Petrol chainsaws for property maintenance

MS 251 C-BE

Top range saw for property maintenance with Quick Chain Tensioning and ErgoStart

General

The new MS 251 C-BE featuring Quick Chain Tensioning (B) and ErgoStart (E) is ideal for a variety of applications, from cutting firewood to timber construction. This high torque engine is easy to start and comfortable to use, with a high cutting performance. Emissions are cut by 70% and fuel consumption is up to 20% lower compared to a STIHL 2-stroke engine of the same power output without 2-MIX technology.

Versions



Deviations from the product range and information provided here are possible, depending on the country. STIHL reserves the right to make changes to technical specifications and equipment.

Product versions

  • MS 251 Top range saw for property maintenance

Technical specifications

MS 251 C-BE

Technical specifications

Technical specifications Value
Displacement 45,6 cm³
Power output 2,2/3 kW/bhp
Weight 1) 5,1 kg
Power-to-weight ratio 2,4 kg/kW
Sound pressure level 2) 103 dB(A)
STIHL Oilomatic saw chain type Rapid Micro (RM)
Sound power level 3) 114 dB(A)
Vibration level left/right 4) 3,9/3,9 m/s²
Saw chain pitch .325"

1) Without fuel, without bar and chain
2) K-factor according to DIR 2006/42/EC = 2.5 (dB (A))
3) K-factor according to DIR 2006/42/EC = 2.5 dB (A)
4) K-factor according to DIR 2006/42/EC = 2m / s ²

Deviations from the product range and information provided here are possible, depending on the country. STIHL reserves the right to make changes to technical specifications and equipment.

Features

MS 251 C-BE

Standard equipment

  • STIHL ERGOSTART Zoom
    STIHL ERGOSTART

    A spring between the starter cord reel and crankshaft relieves the strain when starting, meaning that excessive pulling on the cord is no longer needed. The result is a convenient starting procedure with practically.

  • STIHL Quick Chain Tensioning (B) Zoom
    STIHL Quick Chain Tensioning (B)

    With STIHL Quick Chain Tensioning, it's easy to adjust the saw chain, without tools and without coming into contact with the sharp saw chain itself. Just release the sprocket cover and turn the adjusting wheel to set the optimum tension.

  • Carburettor heating (V) Zoom
    Carburettor heating (V)

    By changing the chain saw from summer to winter operation, the intake air is pre-heated over the engine fins. This ensures that the carburettor does not ice up and you can continue working in freezing temperatures.

  • Pre-separation air filtration system Zoom
    Pre-separation air filtration system

    STIHL long-life air filtration systems with pre-separation achieve perceptibly longer filter life compared with conventional filter systems. Air drawn in is swirled. The larger, heavier particles are ejected. The pre-cleaned air is routed to the air filter via the pre-separator duct.

  • Compensator Zoom
    Compensator

    This controller in the carburettor prevents the fuel-air mixture getting richer as the air filter becomes clogged. The correct quantity of fuel is delivered to the carburettor depending on the quantity of air passing through the air filter. This keeps the fuel/air ratio in the combustion mixture constant and hence also the engine power. The filter doesn't need to be cleaned until an appreciable drop in power occurs.

  • Manual fuel pump (Purger) Zoom
    Manual fuel pump (Purger)

    STIHL chainsaws and pole pruners with manual fuel pumps allow improved starting with a reduced number of starting pulls. Pressing the primer fills the carburettor control chamber with fuel. This ensures that there is sufficient fuel present to create an ignitable air-fuel mix on starting, requiring significantly fewer starting pulls.

  • STIHL anti-vibration system Zoom
    STIHL anti-vibration system

    Precisely calculated buffer zones minimise the transfer of engine and saw chain vibrations to the front and rear handles. The chainsaw therefore runs noticeably smoother. This allows the user to save their strength and work longer.

  • STIHL Ematic System Zoom
    STIHL Ematic System

    Compared to conventional bars without Ematic, the STIHL Ematic system reduces the consumption of chain lubricant by up to 50 %, depending on the type of wood and the cutting attachment used. This system comprises a STIHL Ematic or Ematic S guide bar, a STIHL Oilomatic saw chain and a variable-flow or reduced-flow oil pump. As a result, virtually every drop of chain lubricant is delivered to exactly the right spot.

  • Single-lever master control Zoom
    Single-lever master control

    All important functions such as start, choke, throttle and stop are operated via a single lever.

  • Tool free fuel caps Zoom
    Tool free fuel caps

    Special caps to open and close the tank cap quickly, easily and without tools.

Retrofitted equipment

  • HD2 filter Zoom
    HD2 filter

    This air filter keeps even the finest dust away from the engine, ensuring a particularly long service life. Thanks to its special material, the filter can easily be cleaned by washing, for example with STIHL Varioclean and warm water.

Deviations from the product range and information provided here are possible, depending on the country. STIHL reserves the right to make changes to technical specifications and equipment.

Accessories

MS 251 C-BE

Accessories

    • STIHL Smart Connector Zoom
      STIHL Smart Connector

      The Smart Connector can be attached to petrol-driven, electric, and cordless products, enabling it to deliver important information about your STIHL power tool via Bluetooth® 4.2. The Smart Connector offers entirely new functions and services, as a basis for device management both in your home garden using the STIHL connected app, and for managing your machine fleet using the STIHL connected Portal.

    Technical specifications Value
    Weight 20 g
    Dimensions (l x b x h) 53 x 42 x 14 mm
    Signal range ca. 10 m
    Running time per battery charge ca. 1 Year
    Connectivity BLE 4,2
    Battery 3V CR 2.032

    Versions

    • Combination socket tool Zoom
      Combination socket tool

      For tensioning the chain and changing the chain, bar and spark plug. Width across flats: 19 (for MS 261 up), 19-13 (for MS 271, MS, 291, MS 311, MS 391), 19–16 (for MS 170, MS 171, MS 180, MS 181, MS 193 C, MS 211, MS 231, MS 241, MS 251), 16 and 13 ( for MS 150, MS 201, MS 201 T).

    Versions

    • Combination socket tool

    • Chainsaw bag Zoom
      Chainsaw bag

      For tidy storage and transport of chainsaws with bar lengths up to 45 cm.

    Versions

    • Combination socket tool, width across flats 19–16 Zoom
      Combination socket tool, width across flats 19–16

      For tensioning the chain and changing the chain, bar and spark plug. Suitable for MS 170, MS 171, MS 180, MS 181, MS 193 C, MS 211, MS 231, MS 241 and MS 251.

    Versions

    • Multi-function tool Zoom
      Multi-function tool

      Practical, multi-function quality tool in a sturdy plastic case. 3.5 mm flat-blade screwdriver for carburettor adjustment and cleaning grooves, Torx® TX 27 screwdriver, nylon pouch with belt loop. Width across flats 19-13 for MS 271, MS 291, MS 311 and MS 391, width across flats 19-16 for MS 170, MS 171, MS 180, MS 181, MS 193 C, MS 211, MS 231, MS 241 and MS 251.

    Versions

    • Laser 2-in-1 Zoom
      Laser 2-in-1

      Felling direction indicator and cutting guide in one. For cutting short pieces of wood without complicated measuring, can be used as a felling direction indicator to check the cuts and felling direction, demonstration video on DVD. Choose the holder suitable for your chain saw.

    Versions

    • Holder 1143 for STIHL Laser 2-in-1 Zoom
      Holder 1143 for STIHL Laser 2-in-1

      MS 231, MS 241, MS 251, all design variants except VW

    Versions

Deviations from the product range and information provided here are possible, depending on the country. STIHL reserves the right to make changes to technical specifications and equipment.

Documents

Owners manuals and safety brochures

Languages Date Link
manual icon de / fr / it 27.02.2023